This Recommendation defines the stage 2 of the Integrated Services Digital Network (ISDN) as provided by telecommunications operators for the Malicious Call Identification supplementary service (MCID). Stage 2 identifies the functional capabilities and the information flows needed to support the service description. The stage 2 description also identifies user operations not directly associated with a call (Recommendation I. 130[1]).
ITU-T Q.81.7 SPANISH-1997由国际电信联盟 IX-ITU 发布于 1997-06-01。
ITU-T Q.81.7 SPANISH-1997 在中国标准分类中归属于: M21 各种通信业务服务。
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